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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
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Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 611 to 620 of 922 (0.075 seconds)Spelling suggestions: "subject:"high performance computing."" "subject:"igh performance computing.""
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Tuned and asynchronous stencil kernels for CPU/GPU systemsVenkatasubramanian, Sundaresan 18 May 2009 (has links)
We describe heterogeneous multi-CPU and multi-GPU implementations of Jacobi's iterative method for the 2-D Poisson equation on a structured grid, in both single- and double-precision. Properly tuned, our best implementation achieves 98% of the empirical streaming GPU bandwidth (66% of peak) on a NVIDIA C1060. Motivated to find a still faster implementation, we further consider "wildly asynchronous" implementations that can reduce or even eliminate the synchronization bottleneck between iterations. In these versions, which are based on the principle of a chaotic relaxation (Chazan and Miranker, 1969), we simply remove or delay synchronization between iterations, thereby potentially trading off more flops (via more iterations to converge) for a higher degree of asynchronous parallelism. Our relaxed-synchronization implementations on a GPU can be 1.2-2.5x faster than our best synchronized GPU implementation while achieving the same accuracy. Looking forward, this result suggests research on similarly "fast-and-loose" algorithms in the coming era of increasingly massive concurrency and relatively high synchronization or communication costs.
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| 612 |
Jahresbericht 2003 zur kooperativen DV-Versorgung01 July 2013 (has links) (PDF)
No description available.
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| 613 |
Jahresbericht 2004 zur kooperativen DV-Versorgung01 July 2013 (has links) (PDF)
No description available.
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| 614 |
Jahresbericht 2005 zur kooperativen DV-Versorgung01 July 2013 (has links) (PDF)
No description available.
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| 615 |
Jahresbericht 2006 zur kooperativen DV-Versorgung01 July 2013 (has links) (PDF)
No description available.
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| 616 |
Jahresbericht 2007 zur kooperativen DV-Versorgung01 July 2013 (has links) (PDF)
No description available.
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| 617 |
Jahresbericht 2008 zur kooperativen DV-Versorgung01 July 2013 (has links) (PDF)
No description available.
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| 618 |
Jahresbericht 2009 zur kooperativen DV-Versorgung01 July 2013 (has links) (PDF)
No description available.
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| 619 |
Jahresbericht 2010 zur kooperativen DV-Versorgung01 July 2013 (has links) (PDF)
No description available.
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| 620 |
Jahresbericht 2011 zur kooperativen DV-Versorgung01 July 2013 (has links) (PDF)
No description available.
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